Elevator



L: l. ZIEGLER.

ELEVATOR.

APPLlcAnoN FILED APR. 2o. wxs.

1,806,509. Patented J une 10, 1919.

2 SHEETS-SHEET 2.

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UNTTED sTATEs PATENT OFFICE- LESLIE I. ZEG-LER, OF INDIANAPOLIS, INDIANA, ASSIGNOR T0 NORDYKE & MARIVIONr COMPANY, 0F INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

ELEVATOR.

Specification of Letters Patent.

Patented June 1o, 1919.

Applicationled'April 20, 1918. Y Serial No. 229,668.

To all 'whom it may concern:

Be it known that I, LESLIE I. ZmGLER, a citizen of the United States, residing at Indianapolis in the county of Marion and State of Indiana, have invented a new and useful Elevator, of which the following is a specification.

My invention relates to elevators of the endless belt type, provided at intervals with platforms onto and olf of which persons may step or articles may be placed and removed at the different floors of a building, such'as a factory.

It is the object of my invention to improve and simplifyfthe construction and mounting of the platforms of such elevators, whereby greater rigidity is insured and the chance of accident is minimized.

In attaining this object, I make each platform a rigid structure with two clear unobstructed faces for use in ascent and descent respectively, and provide on each platform two pairs of spaced rollers for cooperating with guiding channel irons on each side of the belt, so as to hold the platforms in proper position when under weight; and I connect each rigidl double-faced platform with two cross'bars attached to the endless belt, such connection to at least one of said cross bars being by pin and slot connections permitting relative movement of such cross bar and platform as required when the distance between the two cross bars varies as the belt passes on to or' off of the upperA or lower supporting pulley. I

The accompanying drawing illustrates my invention. Figure 1 is a. fragmentary front elevation of the elevator, with parts broken away; Fig. 2 is a side elevation of the. eleyator, also withparts broken away; Fig. 3 is an 'enlarged' partial view of thc endless belt and upper pulley` with one of the platforms passing aroun the pulley; and Fig. 4 is an enlargedl section on the line 4 4 of Fig. 2.

Ihe endless carrying belt 10 travels over an upper pulley 11 and a lower pulley 12, mounted in suitable bearings and located above the to floor and below the lowest oor between which the elevator is to carry perg each double-faced platform with which it is v desired to provide the belt. Thetwo cross bars ofeach pair are spaced apart on the belt 10 by a definite distance; but the actual distance between the two cross bars of a pair is lesswhen the portion of the belt between them is on one of the pulleys 11 or 12 than it is when such belt portion is straight, and decreases and increases as such belt portion passes respectively on to and oli' of a pulley.

Associated with each pair of cross bars 21 and 22 is a double-faced platform-25, which is provided with two oppositely facing floor plates 26 and 27 spaced apart and interconnected by two connecting frames 28 at opposite edges of the Abelt 10. These interconnecting frames are entirely ,between the two iioor plates 26 and 27 except at the belt edges of such Hoor plates, so that the working faces of such floor plates Vare entirely unobstructed, and in consequence the chance of accident is minimized. The two frames 28 are spaced apart by a l distance slightly greater than the width of the belt 10, as is clear `from Fig. 4. so as to clear the edges of such belt. The frames 28 overlie theends of the associated cross bars 21 and 22, and are connected to such cross bars s o as to permit the varying of the distance between the cross bars without requiring any distortion of the platform. To this end the cross bar 21 is provided atits ends with pivot pins 29 which t in pivot holes in one end of each frame 28, at the belt line; and the cross bar 22 is provided at-its ends with pivot pins 30 which project into slots 31 in the other end of each frame 28, at the belt line. The slots 31 may take different forms, but preferably they are slightly oblique to the line connecting the pivot pins 29 and 30, as is clear from F ig. 3, as it is found in kpractice Athat this arrangement gives good results.

Each frame 28 is provided with two rollers 35, located at the two ends thereof substantially at the belt line and close to the cross bars 21 and 22. These rollers are guide rollers and travel in channel irons 36 located at each edge of the belt 10 and properly shaped to conformto the line of travel of the rollers 35 as the belt 10 moves. At the top and bottom, where the beltV 10 p asses over the pulleys 11 and 12, the channel irons 36, if providedl are preferably slightly wideiieditor allow, a greater latitude of movement of theY rollers 35; and at the lower pulley 12 the widening is greater than at the upper pulley 11 so as to allow for the vertical adjustment of the shaft 37 of such lower pulley 12. The channel irons 36 cooperate with the rollers 35 to hold the platforms 25 in proper position, lwithithe Hoor plates 26 and'2 thereofhorizontal, as the platforms are moving vertically between oors, so thatsuch floor plates will be prevented from tilting from the horizontal by reason vof the weight which is applied thereto. For additional safety, the belt is providedwith hand grips 38.

In operation, the` belt 10 is driven in the direction of the arrows, so that the platforms 25 travel up on one side, (the left in Fig. 2,) and down on the other side, (the rigat'in Fig. 2). The floor plate27 of each platform is uppermost during the upward movement, while on the downward movement the floorplate 26 is uppermost. When a workman desires to travel from one floor to another he steps on to the iioor plate 27 of an ascending platform or the Hoorplate 26 of a descending platform as such platform passes the floor heeis on, holdingvhim-v self steady bythe hand grip 38, kand steps off 'when he reaches the iioorwherer he desires to be. Similarly, any articles which it is desired to move upward or downward are placed on the Hoor. plates ofthe platforms as they pass one. floor and taken off as they pass another. The rigid construction of the ,entire platform makes for stability and safety, as well as for simplicity in construction; while the pin and slot', connection S0-31 provided ifor the necessary variationV in the distance between the.,4 cross, bars 21 and 22.

I claim as my.invention,:,A

1. In an endless belt elevator, the com,- bination with the enllesscarr-ier, of.a` pair of cross Vbars mounted on, said rendless carrier, a rigid'double-.faced platform mounted on ,said.,pair ofvcross bars Vand xhaving a pin and slot connection;4 withfkonelof such.

cross bars, said platform having two opposite platform faces fixed relatively to each other and facing respectively forward and rearward withrespect to said endless carrier, guide rollers carried by said platform, and channel irons inwhich said guide rollers of travel. o

2. In an endless belt elevator, the combination with the endless carrier, of a pair of cross bars mounted on said endless carrier, and a rigid double-faced platform-mounted on saidpair of cross bars and having a pin and slot connection with one of such cross bars, said platform having two opposite platform faces fixed krelatively to, each other and facing respectively forward and rearward withrespect to said endlesscarrier;

8. In an endless beltelevator, the. combination with thev endless carrier, of,a;,pair

of cross bars mounted on said endless-.carrier, ay rigid Vdouble-facedplatform comprising two oppositely facing floor plates connected by rigid frames atthe edges of said.

endless carrier so that such-plates are fixed relatively to. each other and face respectively forward and rearward along saidendless carrier, said frames being vpivotallyconnected at one end to the ends of one of said cross bars and at-the other end having Ipin and slot connections with the ends of the other cross bar, a pair of spaced guide rollers carried by each of said frames, and channel irons with which said guide rollers cooperate. A

4. In an endless belt elevator, thecombination with the endless carrier, of. apair of cross bars mounted on said endless carrier, and a rigid` double-faced platform comprising two oppositely facing floor plates connected by rigid framesat the edges of said endless carrier so ,thatsuch plates are fixed relatively to eachother and faceA respectively forward and.; rearward along` said endless carrier, said frames being pivotally connected at one en d to the ends vof one of said cross bars and Yat the otherend having pin and slotv connections with the ends of the other crossfbar.l

5. In an endless belt elevator, the combination with the endless carrier, of a,` pair of cross bars mounted ,on,said endless carrier, a rigid doubleffaced platform comprisingtwo oppositely facing floorplatesconnected by rigid frames at the edges ofsaid endless carrier, saidvframes being pivotally connected at one end to the ends ofzone of said cross bars-and at the other end having obliquely extending slots which receive the ends of the othercross bar, a4 pair ofspaced guide rollers carried by each-of said frames,- and channel irons with which said Y, guide rollers coperate.`

bination with the endless carrier, of a pair ing obliquely extending slots Which receive of cross bars mounted on said endless earthe ends of the other Cross bar. 10 rier, and a rigid double-faced platform oom- In Witness Whereof I have hereunto set prising two oppositely facing floor plates my hand at Indianapolis, Indiana, this 18th connected by rigid frames at the edges of day of April, A. D. one thousand nine hunsaid endless Carrier, said frames being pivdred and eighteen.

otzllly connected at one end to the ends of one of said cross bars and at the other end hav- LESLIE I. ZIEGLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

